Quick Reference Table of Pre-Harvest Intervals for Several Common Pesticides

When using pesticides to control pests and diseases, some vegetable growers often pay no attention to the pesticide safety interval before the vegetables are marketed, resulting in excessive pesticide residues on the vegetables. For this reason, vegetable growers are reminded to strengthen their awareness, pay attention to the interval after pesticide application before the vegetables are marketed, and ensure that the vegetables are pollution-free.

What is the interval after pesticide application before the vegetables are marketed? The relevant regulations of the Institute for the Control of Agrochemicals, Ministry of Agriculture are:

Pre-harvest intervals for several common pesticides

I. Fungicides

75% chlorothalonil wettable powder 7 days;

77% copper hydroxide wettable powder 3-5 days;

50% iprodione wettable powder 4-7 days;

70% thiophanate-methyl wettable powder 5-7 days;

50% vinclozolin wettable powder 4-5 days;

50% metalaxyl and 58% metalaxyl-mancozeb wettable powder 2-3 days;

64% oxadixyl-mancozeb wettable powder 3-4 days.

Kasugamycin 21 days

II. Insecticides

10% cypermethrin emulsifiable concentrate 2-5 days;

2.5% deltamethrin 2 days;

2.5% lambda-cyhalothrin emulsifiable concentrate 7 days; 5% esfenvalerate emulsifiable concentrate 3 days;

5% pirimicarb wettable powder 6 days;

1.8% abamectin emulsifiable concentrate 7 days;

10% bifenthrin emulsifiable concentrate 3 days;

40.7% chlorpyrifos emulsifiable concentrate 7 days;

20% fenpropathrin emulsifiable concentrate 3 days;

20% fenvalerate emulsifiable concentrate 5 days;

35% profenofos 7 days;

20% fenpropathrin emulsifiable concentrate 3 days;

10% moplic emulsifiable concentrate 7 days;

25% quinalphos emulsifiable concentrate 9 days;

50% pirimicarb wettable powder 6 days;

5% diflubenzuron wettable powder 7 days.

III. Acaricides

50% bromopropylate emulsifiable concentrate 14 days;

50% fenbutatin oxide wettable powder 7 days

Pre-harvest intervals for commonly used pesticides on different crops

1. Pre-harvest intervals for commonly used pesticides on wheat.

40% dimethoate emulsifiable concentrate 10 days;

10% permethrin emulsifiable concentrate 7 days;

50% carbendazim wettable powder 20 days;

25% chlorbenzuron suspension concentrate 15 days;

25% propiconazole emulsifiable concentrate 28 days;

25% diflubenzuron wettable powder 21 days;

70% thiophanate-methyl wettable powder 30 days.

2. Pre-harvest intervals for commonly used pesticides on rice.

70% thiophanate-methyl wettable powder 30 days;

50% fenthion emulsifiable concentrate 21 days;

2% blasticidin S 7 days;

40% isoprothiolane emulsifiable concentrate 14 days for early rice and 28 days for late rice;

25% carbaryl wettable powder 30 days;

50% cartap soluble powder 21 days;

25% bisultap aqueous solution 15 days;

2% isoprocarb powder 14 days;

75% chlorothalonil wettable powder 10 days;

40% iprobenfos emulsifiable concentrate 20 days;

50% carbendazim wettable powder 30 days.

3. Pre-harvest intervals for commonly used pesticides on cotton.

73% propargite emulsifiable concentrate 21 days;

75% thiodicarb wettable powder 14 days;

25% permethrin emulsifiable concentrate 14 days;

10% alpha-cypermethrin emulsifiable concentrate 7 days;

2.5% deltamethrin emulsifiable concentrate 14 days;

5% esfenvalerate 14 days;

20% fenpropathrin emulsifiable concentrate 14 days;

20% fenvalerate emulsifiable concentrate 7 days;

10% moplic emulsifiable concentrate 14 days;

40% chlorpyrifos emulsifiable concentrate 21 days.

4. Pre-harvest intervals for commonly used pesticides on apple.

73% propargite emulsifiable concentrate 30 days;

40% dimethoate emulsifiable concentrate 7 days;

50% fenitrothion emulsifiable concentrate 15 days;

75% chlorothalonil wettable powder 20 days;

2.5% deltamethrin emulsifiable concentrate 5 days;

20% fenvalerate emulsifiable concentrate 14 days;

20% fenpropathrin emulsifiable concentrate 30 days;

5% esfenvalerate emulsifiable concentrate 14 days;

5% cypermethrin emulsifiable concentrate 21 days;

50% iprodione wettable powder 7 days.

50% bromopropylate emulsifiable concentrate 21 days;

20% dicofol emulsifiable concentrate 45 days.

5. Pre-harvest intervals for commonly used pesticides on cucumber.

40% dimethoate emulsifiable concentrate 2 days;

58% metalaxyl-mancozeb wettable powder 1 day;

10% alpha-cypermethrin emulsifiable concentrate 3 days;

64% oxadixyl-mancozeb wettable powder 3 days.

6. Pre-harvest intervals for commonly used pesticides on Chinese cabbage.

40% acephate emulsifiable concentrate 7 days;

2.5% deltamethrin emulsifiable concentrate 2 days;

20% fenvalerate emulsifiable concentrate 12 days;

5% esfenvalerate emulsifiable concentrate 3 days;

20% fenpropathrin emulsifiable concentrate 3 days;

40% dimethoate emulsifiable concentrate 10 days;

10% permethrin emulsifiable concentrate 5 days;

25% quinalphos emulsifiable concentrate 24 days.

7. Pre-harvest intervals for commonly used pesticides on tomato.

50% fenbutatin oxide wettable powder 7 days;

10% fenbutatin oxide emulsifiable concentrate 4 days;

75% chlorothalonil wettable powder 7 days.